Obituaries--Darvirrus, Holtzclaw et al

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Peter L. Darvirris

Peter L. Davirris, 75, of Waltham, a retired supervisor at Lincoln Laboratory, died on October 9. He worked at Lincoln from 1947 until his retirement in 1983.

His survivors include his wife, Dorothy; a son, Louis Darvirris; two sisters, and three grandchildren.

Dale D. Holtzclaw

Dale D. Holtzclaw, 77, of Plainview, NE, died on July 11. Mr. Holtzclaw, formerly of Hampton Falls, NH, was a heat and ventilation mechanic at Lincoln Laboratory from 1968 until his retirement in 1980. He is survived by Gertrude Holtzclaw.

Ronald E. Perrotta

Ronald E. Perrotta, 47, of Cambridge, died suddenly on May 3. Mr. Perrotta had been a custodian at Lincoln Laboratory since 1988. He leaves his wife, Eileen Perrotta.

Anthony Silva

Anthony Silva, a retired heat and ventilation mechanic in Physical Plant from 1965 until his retirement in 1991, died on September 17. A resident of Everett, he was 71. He leaves his wife, Margaret Silva, and a son, Anthony Silva.

Marjorie Smith

Marjorie Smith, 73, of Chelmsford, a retired administrative assistant in Group 12 at Lincoln Laboratory, died on September 9. She had worked at Lincoln from 1959 until her retirement in 1991. Her survivors include a brother, Donald Smith of Lowell.

William B. Smith

Word has been received of the September 21 death of William B. Smith, 88, of Laguna Hills, CA. Mr. Smith was a staff member in what became the Center for Space Research from 1946 until his retirement in 1972. He leaves his wife, Edna Smith, and a son-in-law, Clint Frasier.

Xin Xu

Xin Xu, 51, of Cambridge, a postdoctoral associate in the Research Laboratory of Electronics, died on August 25 following a long illness. Mr. Xu had worked at MIT since 1990. He is survived by his wife, Shanyuan Zhu; two daughters, Qing Sunny Xu and Hui Xu, and a stepson, Ye Xu.